Mitsubishi Eclipse 1990 Service Manual page 530

OBD-II DRIVE CYCLE
All kinds of diagnostic trouble code can be monitored by carrying out a
with the following six drive cycle patterns. In other words, carrying out such a drive test
to reproduce any kind of
to illuminate and to check that the repair procedure has eliminated the trouble
engine/malfunction indicator lamp no longer illuminates). In other words, doing such a drive allows
regenerate any kind of trouble which involves illuminating the check engine/malfunction indicator lamp
and to check the repair procedure has eliminated the trouble (the check
lamp is no more illuminated).
Caution
Make sure that there are two people in the vehicle when
1. Catalytic converter monitor
Test conditions/procedure
1. All of the following conditions should be
(1) Outside air temperature:
(2) condition:
Selector lever position:
Overdrive switch: ON
Power/economy changeover switch: Power
(3) switch: OFF
2. Carry out one trip monitoring according to the following drive pattern (from' starting
until ignition is turned off). (Takes approximately 20 minutes.)
the engine and quickly accelerate to a speed of 72 km/h (45 mph) or
Monitor pre-preparation period: drive for
at between 72
during this period.
Decelerate until the vehicle speed is between 56
Monitoring period: drive for 90 seconds or more on a level
opening angle at a constant angle (keeping throttle variations as small as absolutely possible)
and the vehicle speed at between 56
Fully close the throttle to make the vehicle decelerate. (Braking is allowed at this time.)
After the vehicle has been decelerating continuously for
to a speed of between 56
Repeat steps
total of six times.)
Decelerate to a stop. After the vehicle has stopped, turn the ignition
Drive cycle pattern
Vehicle speed
Engine starts
NOTE:
Throttle open-
ing angle
0
ENGINE (TURBO)
AND ENGINE>
which involves causing the check
or higher
range
97 (45
60 mph). Braking (lasting several seconds)
64 km/h (35
64 km/h (35
4 and six times. (The procedure in steps
300 seconds or more
72 97 km/h (45
Fully
decelerating
TSB Revision
Troubleshooting
when the drive test is carried out.
seconds or more
64 km/h (35
40 mph).
seconds, quickly
40 mph).
and
60 mph)
I I
Fully Fully
decelerating decelerating
drive test in
indicator
that the check
indicator
,
the vehicle Speed,
40 mph).
while maintaining the throttle.
should be
eed should not
outside specified range.'
itch: OFF
.
. . ,